20312313012227 has 2 divisors, whose sum is σ = 20312313012228. Its totient is φ = 20312313012226.

The previous prime is 20312313012197. The next prime is 20312313012293. The reversal of 20312313012227 is 72221031321302.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20312313012227 - 2²⁸ = 20312044576771 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20312313012227.

It is not a weakly prime, because it can be changed into another prime (20312313011227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10156156506113 + 10156156506114.

It is an arithmetic number, because the mean of its divisors is an integer number (10156156506114).

Almost surely, 2^{20312313012227} is an apocalyptic number.

20312313012227 is a deficient number, since it is larger than the sum of its proper divisors (1).

20312313012227 is an equidigital number, since it uses as much as digits as its factorization.

20312313012227 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6048, while the sum is 29.

Adding to 20312313012227 its reverse (72221031321302), we get a palindrome (92533344333529).

The spelling of 20312313012227 in words is "twenty trillion, three hundred twelve billion, three hundred thirteen million, twelve thousand, two hundred twenty-seven".